EP1083300B1 - Bläsergehäuse mit doppelwandiger Berstschutzstruktur - Google Patents

Bläsergehäuse mit doppelwandiger Berstschutzstruktur Download PDF

Info

Publication number
EP1083300B1
EP1083300B1 EP00307154A EP00307154A EP1083300B1 EP 1083300 B1 EP1083300 B1 EP 1083300B1 EP 00307154 A EP00307154 A EP 00307154A EP 00307154 A EP00307154 A EP 00307154A EP 1083300 B1 EP1083300 B1 EP 1083300B1
Authority
EP
European Patent Office
Prior art keywords
casing member
casing
containment structure
blade containment
blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00307154A
Other languages
English (en)
French (fr)
Other versions
EP1083300A2 (de
EP1083300A3 (de
Inventor
Jan Christopher Schilling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of EP1083300A2 publication Critical patent/EP1083300A2/de
Publication of EP1083300A3 publication Critical patent/EP1083300A3/de
Application granted granted Critical
Publication of EP1083300B1 publication Critical patent/EP1083300B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • F01D21/045—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position special arrangements in stators or in rotors dealing with breaking-off of part of rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Definitions

  • the present invention relates to turbomachinery and blade containment structures for minimizing structural damage due to blade release. More particularly, this invention relates to a dual-wall containment casing for turbomachinery, such as a high bypass turbofan engine, in which the casing has a multi-component construction of different materials and is configured to benefit from the different mechanical and physical properties of the materials.
  • High bypass turbofan engines are widely used for high performance aircraft that operate at subsonic speeds. These engines have a large fan placed at the front of the engine to produce greater thrust and reduce specific fuel consumption. The fan serves to compress incoming air, a portion of which is then delivered to the combustion chamber, with a larger portion being bypassed to the rear of the engine to generate additional engine thrust.
  • the fan is circumscribed by a fan casing that must be capable of containing and minimizing damage to the engine from the remote event of a fan blade that is released from its hub during engine operation. For this reason, fan casings are equipped with specialized blade containment structures that serve to minimize structural damage to the engine as well as the aircraft to which the engine is mounted.
  • a containment structure for a turbojet engine having three separate zones for containing fragments of a broken turbine rotor blade is disclosed e.g. in US 4 648 795.
  • blade containment structures An additional consideration for blade containment structures is the natural frequency of the casing and the avoidance of blade/case interaction.
  • the frequency of steel containment structures has typically been increased above blade/case interaction frequencies by the inclusion of rings that are integral with or bolted to the structure.
  • Frequency-altering measures such as integral or bolt-on rings have also been required with aluminum containment structures.
  • a honeycomb structure between the steel component and the wrap has been used to increase the natural frequency of the casing assembly.
  • each of the above modifications for addressing blade/case interaction incurs the penalty of unwanted weight, space and cost.
  • a blade containment structure for a fan casing of turbomachinery, such as a high bypass turbofan engine.
  • the blade containment structure of this invention includes a first casing member having a wall that defines an inner containment shell immediately surrounding the blades of the turbo-machine, and a second casing member assembled to the first casing member.
  • the second casing member has a wall that defines an outer containment shell surrounding the inner containment shell of the first casing member, such that a cavity is defined by and between the inner and outer containment shells.
  • the first casing member is formed from a relatively tough material such as a stainless steel or a nickel-base alloy
  • the second casing member is formed from a material that is less dense than the material of the first casing member.
  • the material of the second casing member may also have lower toughness as compared to the material of the first casing member.
  • the overlapping portions of the first and second casing members provide for a multi-component containment structure whose ability to contain a released blade benefits from the toughness of the first casing member immediately adjacent the blades.
  • the containment structure benefits from the relatively low weight of the second casing member, which preferably forms the balance of the containment structure such that the overall weight of the fan casing is significantly lower than that possible if the entire containment structure was formed of the material of the first casing member.
  • the overlapping portions of the first and second casing members also provide a load path if the first casing member is torn on blade impact, and the cavity defined by the overlapping portions can be sized and configured to accommodate a variety of devices that provide positive damping between the casing members to react any case vibrational interaction with the blades.
  • the present invention provides blade containment structures for use in turbomachinery, and particularly high bypass turbofan engines.
  • an annular-shaped blade containment casing 10 is shown as having a two-piece construction that surrounds fan blades 12 of the fan section of an engine.
  • the casing 10 is composed of annular-shaped forward and aft casings 14 and 18, respectively, having wall portions that overlap each other in the vicinity of the blades 12.
  • the overlap provides a dual-wall construction that promotes the ability of the casing 10 to withstand a localized maximum impact from a fan blade 12 released from its hub (not shown) by distributing the impact of the blade 12, so as to reduce the likelihood of engine damage.
  • the overlapping portions of the forward and aft casings 14 and 18 are designated as inner and outer shells 16 and 20, respectively, which define an annular-shaped cavity 22 therebetween. Because of the proximity of the blade tips to the inner shell 16, the fan blades 12 may rub the inner shell 16 during hard aircraft landings or maneuvers. As is generally conventional, a portion of the inner shell 16 immediately adjacent the blade tips is provided with an abradable material 38, such that the abradable material 38 will sacrificially abrade away when rubbed by the fan blades 12.
  • the inner shell 16 is generally delineated from an axially forward section 24 of the forward casing 14 by a flange 26, to which the aft casing 18 is secured by any suitable means, such as fasteners (not shown).
  • the aft end of the forward casing 14 is shown as terminating with a friction damper 30 composed of an annular rim or flange 32 that is preloaded against an annular shoulder 34 of the aft casing 18, beyond which an aft end 28 of the aft casing 18 extends.
  • the degree to which the flange 32 is deformed to generate a desirable level of friction damping with the shoulder 34 will depend on the natural frequencies of the blades 12 and the containment casing 10, as well as geometric blade/casing interfaces which generate high radial loading, and can generally be appropriately estimated by those skilled in the art.
  • the overlapping inner and outer shells 16 and 20 surround a region 40 within the casing 10 that a blade is typically propelled if released. Consequently, the dual-wall section formed by the inner and outer shells 16 and 20 must be capable of withstanding impact from a released blade 12.
  • a key aspect of this invention is that the inner and outer shells 16 and 20 are formed of different materials, with the inner shell 16 being formed of a relatively tough material, while the outer shell 20 is formed of a lighter-weight material that can have lower toughness as compared to the inner shell 16.
  • Suitable high-toughness materials for the inner shell 16 include steel alloys such as 304SS stainless steel that preferably exhibit a modulus of toughness on the order of about 36 ksi (about 250 MPa).
  • suitable materials for the outer shell 20 include aluminum and its alloys, such as 2029 or 6061, whose densities are significantly less than steel and have a modulus of toughness of about 6 ksi (about 40 MPa).
  • the inner and outer shells 16 and 20 are formed as integral parts of the forward and aft casings 14 and 18, such that the entire forward casing 14 is formed of the same high-toughness material and the entire aft casing 18 is formed of the same lightweight material.
  • the thicknesses of the inner and outer shells 16 and 20 are shown as being approximately equal, generally on the order of about 4 to about 9 mm in thickness, more preferably about 5 to about 6 mm in thickness.
  • the thickness of the inner shell 16 may be equivalent to that of a prior steel casing, while the thickness of the outer shell 20 may be 85% or less of that required for prior aluminum casings.
  • the present invention significantly reduces the overall weight of the casing 10 as compared to all-aluminum casings, and also incurs lower costs as compared to all-steel casings since a lower cost material can be substituted for steel for the aft casing 18.
  • the high-toughness inner shell 16 will bear the brunt of impact in the event that a fan blade 12 is released.
  • a portion of the impact load is distributed to the lighter-weight outer shell 120 through the flange 26 and the friction damper 30, the latter of which will also absorb and dissipate some of the impact force to further minimize damage to the casing 10 and engine.
  • the casing 10 is configured to benefit from the toughness of the material used to form the inner shell 16, yet also has the advantage of reduced weight as a result of the lighter-weight material used to form the aft casing 18.
  • the toughness of the aft casing 18 is less critical, permitting the use of materials whose toughness can be significantly less than that of the inner shell 16.
  • FIG. 2 illustrates a blade containment casing 110 having a three-piece construction in accordance with a second embodiment of the invention.
  • the casing 110 surrounds the fan blades 112 of a turbofan engine fan section, and is composed of forward and aft casings 114 and 118, respectively, which define overlapping inner and outer shells 116 and 120.
  • the blades 112 are surrounded by the dual-wall construction provided by the inner and outer shells 116 and 120, which also define an annular-shaped cavity 122.
  • the inner shell 116 is provided with a sacrificial abradable material 138 for rub encounters with the fan blades 112.
  • the casing 110 includes a friction damper 130 composed of an annular rim or flange 132 that is preloaded against an annular shoulder 134 of the aft casing 118, beyond which an aft end 128 of the aft casing 118 extends.
  • the casing 110 differs from that of Figure 1 by the configuration of the forward casing 114 and the inclusion of a separate forward casing end 124 in lieu of the integral forward section 24 of Figure 1.
  • the forward casing end 124 has a flange 126 that is secured by fasteners (not shown) or other suitable means to the aft casing 118, and is also secured to the fore end of the forward casing 114 by an anti-rotation device 136, such as axial-oriented shear pins.
  • a key advantage of this embodiment is that the weight of the casing 110 can be further reduced by forming the forward casing end 124 of the same or similar lighter-weight material used to form the aft casing 118, e.g., aluminum alloy, while the forward casing 114 is again formed of a relatively high-toughness material such as steel.
  • the thicknesses of the inner and outer shells 116 and 120 are again shown to have approximately equal thicknesses.
  • FIGs 3, 4 and 5 serve to illustrate alternative or supplemental damping devices that can be employed with the casings 10 and 110 of this invention.
  • the damping devices of Figures 3 and 4 are illustrated with the blade containment casing 10 of Figure 1, while the damping device of Figure 5 is illustrated with the casing 110 of Figure 2, though any one or more of the damping devices could be adapted for use with either casing 10 and 110.
  • a damping device 42 is shown as including an elastomeric pad 44 within the cavity 22 and radially abutting a stepped surface 46 of the inner shell 16.
  • the casing 10 is also equipped with an elastomeric pad 48 between the flange 32 of the inner shell 16 that is preloaded against the shoulder 34 of the aft casing 18.
  • elastomeric damping is achieved with a damping device 50 composed of a pin 52 mounted to the flange 32 of the inner shell 16 and abutting the shoulder 34 of the aft casing 18.
  • a spring 54 is mounted on the pin 52 between the flange 32 and the head 56 of the pin 52 to provide damping between the forward and aft casings 14 and 18.
  • Figure 5 illustrates the casing 110 equipped with the friction damping device 130 of Figure 2, and further equipped with an elastomeric damping device 142 composed of an elastomeric bumper 144 mounted on an adjustable pin 146 within the cavity 122.
  • the bumper 144 abuts the outward surface of the inner shell 116, and absorbs vibration as well as helps distribute impact loads during blade release.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Claims (10)

  1. Laufschaufel-Berstschutzstruktur (10, 110) einer Turbomaschine mit mehreren von der Laufschaufel-Berstschutzstruktur (10, 110) umgrenzten Laufschaufeln (12, 112), wobei die Laufschaufel-Berstschutzstruktur (10, 110) aufweist:
    ein erstes Gehäuseelement (14, 114) mit einer Wand, die eine die Laufschaufeln (12, 112) unmittelbar innerhalb der Laufschaufel-Berstschutzstruktur (10, 110) umgebende innere Berstschutzschale (16, 116) definiert, wobei das erste Gehäuseelement (14, 114) aus einem ersten Material ausgebildet ist;
    ein an dem ersten Gehäuseelement (14, 114) angebrachtes zweites Gehäuseelement (18, 118), wobei das zweite Gehäuseelement (18, 118) eine Wand besitzt, die eine die innere Berstschutzschale (16, 116) umgebende äußere Berstschutzschale (20, 120) definiert, dadurch gekennzeichnet, dass
    das zweite Gehäuseelement (18, 118) aus einem zweiten Material ausgebildet ist, das eine geringere Dichte als das erste Material des ersten Gehäuseelementes (14, 114) aufweist; und
    durch die und zwischen den inneren und äußeren Berstschutzschalen (16, 116, 20, 120) ein Hohlraum (22, 122) definiert ist.
  2. Laufschaufel-Berstschutzstruktur (10, 110) nach Anspruch 1, wobei das erste Gehäuseelement (14, 114) aus Stahl und das zweite Gehäuseelement (18, 118) aus Aluminium oder einer Aluminiumlegierung ausgebildet ist.
  3. Laufschaufel-Berstschutzstruktur (10, 110) nach Anspruch 1 oder 2, wobei das erste Gehäuseelement (14) ferner eine vordere Wand (24) besitzt, die nicht die Laufschaufeln (12) umgibt und die nicht von dem zweiten Gehäuseelement (18) umgeben ist.
  4. Laufschaufel-Berstschutzstruktur (10, 110) nach Anspruch 1, 2 oder 3, wobei das erste Gehäuseelement (14) ferner einen Flansch (26) zwischen der vorderen Wand (24) und der inneren Berstschutzschale (16) besitzt, wobei das zweite Gehäuseelement (18) an dem ersten Gehäuseelement (14) bei dem Flansch (26) befestigt ist.
  5. Laufschaufel-Berstschutzstruktur (10, 110) nach Anspruch 1, welche ferner ein vorderes Gehäuseelement (124) aufweist, das nicht die Laufschaufeln (112) umgibt und das nicht von dem zweiten Gehäuseelement (118) umgeben ist, wobei das vordere Gehäuseelement (124) aus einem Material mit geringerer Festigkeit als das erste Material des ersten Gehäuseelementes (114) ausgebildet ist.
  6. Bläser-Laufschaufel-Berstschutzstruktur (10, 110) eines Turbo-Bläsertriebwerks mit hohem Nebenstromverhältnis mit mehreren sich radial erstreckenden von der Laufschaufel-Berststruktur (10, 110) umgebenen Bläser-Laufschaufeln (12, 112), wobei die Laufschaufel-Berststruktur (10, 110) aufweist:
    ein ringförmig geformtes erstes Gehäuseelement (14, 114) mit einer Wand, die eine die Laufschaufeln (12, 112) unmittelbar innerhalb der Laufschaufel-Berstschutzstruktur (10, 110) umgebende innere Berstschutzschale (16, 116) definiert, wobei das erste Gehäuseelement (14, 114) aus einem ersten Material ausgebildet ist;
    ein an dem ersten Gehäuseelement (14, 114) angebrachtes ringförmiges zweites Gehäuseelement (18, 18), wobei das zweite Gehäuseelement (18, 118) eine Wand besitzt, die eine die innere Berstschutzschale (16, 116) umgebende äußere Berstschutzschale (20, 120) definiert,
    dadurch gekennzeichnet, dass
    das zweite Gehäuseelement (18, 118) aus einem zweiten Material ausgebildet ist, das sowohl eine geringere Dichte als auch Festigkeit als das erste Material des ersten Gehäuseelementes (14, 114) aufweist; und
    durch die und zwischen den inneren und äußeren Berstschutzschalen (16, 116, 20, 120) ein ringförmiger Hohlraum (22, 122) definiert ist und
    eine Einrichtung (30, 42, 48, 52, 130, 142) in körperlicher Verbindung mit den ersten und zweiten Gehäuseelementen (14, 114, 18, 118) zur Dämpfung von Schwingungen der Laufschaufel-Berstschutzstruktur (10, 110) steht.
  7. Bläser-Laufschaufel-Berstschutzstruktur (10, 110) nach Anspruch 6, wobei das erste Gehäuseelement (14, 114) aus Stahl ausgebildet ist und das zweite Gehäuseelement (18, 118) aus Aluminium oder einer Aluminiumlegierung ausgebildet ist.
  8. Bläser-Laufschaufel-Berstschutzstruktur (10, 110) nach Anspruch 6 oder 7, wobei das erste Gehäuseelement (14) aufweist:
    eine axial vordere Wand (24), die nicht die Laufschaufeln (12) umgibt und nicht von dem zweiten Gehäuseelement (18) umgeben ist; und
    einen Flansch (26) zwischen der vorderen Wand (24) und der inneren Berstschutzschale (16), wobei das zweite Gehäuseelement (18) an dem ersten Gehäuseelement (14) bei dem Flansch (26) befestigt ist.
  9. Bläser-Laufschaufel-Berstschutzstruktur (10, 110) nach Anspruch 6, welche ferner ein axial vorderes Gehäuseelement (124) aufweist, das nicht die Laufschaufeln (112) umgibt und nicht von dem zweiten Gehäuseelement (118) umgeben ist, wobei das vordere Gehäuseelement (124) an den ersten und zweiten Gehäuseelementen (114, 118) angebracht ist, wobei das vordere Gehäuseelement (124) aus Aluminium oder einer Aluminiumlegierung ausgebildet ist.
  10. Bläser-Laufschaufel-Berstschutzstruktur (10, 110) nach Anspruch 6, wobei das zweite Gehäuseelement (18, 118) ferner eine axial hintere Wand (28, 128) aufweist, die nicht die innere Berstschutzschale (16, 116) des ersten Gehäuseelementes (14, 114) umgibt.
EP00307154A 1999-09-07 2000-08-24 Bläsergehäuse mit doppelwandiger Berstschutzstruktur Expired - Lifetime EP1083300B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/390,877 US6206631B1 (en) 1999-09-07 1999-09-07 Turbomachine fan casing with dual-wall blade containment structure
US390877 1999-09-07

Publications (3)

Publication Number Publication Date
EP1083300A2 EP1083300A2 (de) 2001-03-14
EP1083300A3 EP1083300A3 (de) 2004-01-21
EP1083300B1 true EP1083300B1 (de) 2006-11-29

Family

ID=23544318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00307154A Expired - Lifetime EP1083300B1 (de) 1999-09-07 2000-08-24 Bläsergehäuse mit doppelwandiger Berstschutzstruktur

Country Status (4)

Country Link
US (1) US6206631B1 (de)
EP (1) EP1083300B1 (de)
JP (1) JP2001123995A (de)
DE (1) DE60032079T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11187149B2 (en) 2019-11-25 2021-11-30 Transportation Ip Holdings, Llc Case-integrated turbomachine wheel containment

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9922619D0 (en) * 1999-09-25 1999-11-24 Rolls Royce Plc A gas turbine engine blade containment assembly
GB9922618D0 (en) * 1999-09-25 1999-11-24 Rolls Royce Plc A gas turbine engine blade containment assembly
US6364603B1 (en) * 1999-11-01 2002-04-02 Robert P. Czachor Fan case for turbofan engine having a fan decoupler
GB0117550D0 (en) * 2001-07-19 2001-09-12 Rolls Royce Plc Joint arrangement
US20040022217A1 (en) * 2002-04-29 2004-02-05 Sari Korpela Method and apparatus for soft handover area detection using inter-band measurements
US6695574B1 (en) 2002-08-21 2004-02-24 Pratt & Whitney Canada Corp. Energy absorber and deflection device
US6969239B2 (en) * 2002-09-30 2005-11-29 General Electric Company Apparatus and method for damping vibrations between a compressor stator vane and a casing of a gas turbine engine
FR2847304B1 (fr) * 2002-11-18 2005-07-01 Airbus France Nacelle de reacteur d'aeronef a attenuation acoustique
GB0610271D0 (en) * 2006-05-24 2006-07-05 Rolls Royce Plc A gas turbine engine casing
US20080063508A1 (en) * 2006-09-08 2008-03-13 Barry Barnett Fan case abradable
GB2459646B (en) * 2008-04-28 2011-03-30 Rolls Royce Plc A fan assembly
US8028802B2 (en) * 2008-06-30 2011-10-04 General Electric Company Method and system for damped acoustic panels
GB0907580D0 (en) 2009-05-05 2009-06-10 Rolls Royce Plc A duct wall for a fan or a gas turbine engine
US8672609B2 (en) 2009-08-31 2014-03-18 United Technologies Corporation Composite fan containment case assembly
GB0916823D0 (en) * 2009-09-25 2009-11-04 Rolls Royce Plc Containment casing for an aero engine
US8469661B2 (en) * 2009-10-01 2013-06-25 Pratt & Whitney Canada Corp. Fabricated gas turbine vane ring
US9353684B2 (en) * 2009-12-11 2016-05-31 Northrop Grumman Systems Corporation Aircraft engine airflow modulation apparatus and method for engine bay cooling and cycle flow matching
GB201020143D0 (en) 2010-11-29 2011-01-12 Rolls Royce Plc A gas turbine engine blade containment arrangement
GB201103682D0 (en) * 2011-03-04 2011-04-20 Rolls Royce Plc A turbomachine casing assembly
US8801376B2 (en) 2011-09-02 2014-08-12 Pratt & Whitney Canada Corp. Fabricated intermediate case with engine mounts
EP2573328A1 (de) * 2011-09-20 2013-03-27 Siemens Aktiengesellschaft Statorring für eine Turbomaschine und Verfahren zum Betreiben des Statorrings
GB201120105D0 (en) * 2011-11-22 2012-01-04 Rolls Royce Plc A turbomachine casing assembly
JP5276238B1 (ja) * 2011-11-30 2013-08-28 古河スカイ株式会社 金属の成形方法およびその成形品
GB201120557D0 (en) 2011-11-30 2012-01-11 Rolls Royce Plc A turbomachine casing assembly
EP2620652B1 (de) * 2012-01-25 2015-03-11 Rolls-Royce plc Turbomaschinengehäuseanordnung mit Hohlraum zum Schaufelberstschutz
EP2620653B1 (de) * 2012-01-25 2015-06-24 Rolls-Royce plc Turbomaschinengehäuseanordnung mit Hohlraum zum Schaufelberstschutz
SG11201404100TA (en) * 2012-02-16 2014-10-30 United Technologies Corp Composite fan containment case assembly
US9546563B2 (en) 2012-04-05 2017-01-17 General Electric Company Axial turbine with containment shroud
GB2501918B (en) 2012-05-11 2014-06-18 Rolls Royce Plc Casing
US10731511B2 (en) 2012-10-01 2020-08-04 Raytheon Technologies Corporation Reduced fan containment threat through liner and blade design
FR2997726B1 (fr) * 2012-11-05 2018-03-02 Safran Aircraft Engines Carter de turbomachine
FR2997725B1 (fr) * 2012-11-05 2018-03-02 Safran Aircraft Engines Carter de turbomachine
WO2014130158A1 (en) * 2013-02-20 2014-08-28 Kappes Matthew J Liner apparatus for a gas turbine engine
US10024191B2 (en) 2013-03-11 2018-07-17 Rolls-Royce Corporation Fan track liner designed to yield next to fan case hook
US9598981B2 (en) * 2013-11-22 2017-03-21 Siemens Energy, Inc. Industrial gas turbine exhaust system diffuser inlet lip
WO2016202870A1 (en) * 2015-06-18 2016-12-22 Nuovo Pignone Tecnologie Srl Casing for a turbomachine
GB201517171D0 (en) * 2015-09-29 2015-11-11 Rolls Royce Plc A casing for a gas turbine engine and a method of manufacturing such a casing
US10830136B2 (en) 2015-11-19 2020-11-10 General Electric Company Fan case for use in a turbofan engine, and method of assembling a turbofan engine
US10550718B2 (en) 2017-03-31 2020-02-04 The Boeing Company Gas turbine engine fan blade containment systems
US10487684B2 (en) 2017-03-31 2019-11-26 The Boeing Company Gas turbine engine fan blade containment systems
US10436061B2 (en) 2017-04-13 2019-10-08 General Electric Company Tapered composite backsheet for use in a turbine engine containment assembly
US10677261B2 (en) * 2017-04-13 2020-06-09 General Electric Company Turbine engine and containment assembly for use in a turbine engine
US10662813B2 (en) * 2017-04-13 2020-05-26 General Electric Company Turbine engine and containment assembly for use in a turbine engine
GB201804568D0 (en) * 2018-03-22 2018-05-09 Rolls Royce Plc Fan track liner
US11242866B2 (en) 2018-08-01 2022-02-08 General Electric Company Casing having a non-axisymmetric composite wall
US11008887B2 (en) * 2018-12-21 2021-05-18 Rolls-Royce Corporation Fan containment assembly having a nesting cavity
CN114483306B (zh) * 2020-11-13 2023-09-01 中国航发商用航空发动机有限责任公司 一种风扇包容机匣及航空发动机
US20230399981A1 (en) * 2022-06-09 2023-12-14 Pratt & Whitney Canada Corp. Containment assembly for an aircraft engine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1485032A (en) * 1974-08-23 1977-09-08 Rolls Royce Gas turbine engine casing
GB1466385A (en) * 1974-11-21 1977-03-09 Rolls Royce Containment shields for gas turbine engines
US4598449A (en) * 1981-12-21 1986-07-08 United Technologies Corporation Beam for a containment structure
GB2128686B (en) * 1982-10-06 1986-04-16 Rolls Royce Turbine overspeed limiter
US4534698A (en) * 1983-04-25 1985-08-13 General Electric Company Blade containment structure
FR2574476B1 (fr) * 1984-12-06 1987-01-02 Snecma Carter de retention pour soufflante de turboreacteur
CA2042198A1 (en) * 1990-06-18 1991-12-19 Stephen C. Mitchell Projectile shield
US5188505A (en) * 1991-10-07 1993-02-23 General Electric Company Structural ring mechanism for containment housing of turbofan
US5344280A (en) * 1993-05-05 1994-09-06 General Electric Company Impact resistant fan case liner
US5486086A (en) * 1994-01-04 1996-01-23 General Electric Company Blade containment system
US5431532A (en) * 1994-05-20 1995-07-11 General Electric Company Blade containment system
US5885056A (en) * 1997-03-06 1999-03-23 Rolls-Royce Plc Gas Turbine engine casing construction
US6149380A (en) * 1999-02-04 2000-11-21 Pratt & Whitney Canada Corp. Hardwall fan case with structured bumper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11187149B2 (en) 2019-11-25 2021-11-30 Transportation Ip Holdings, Llc Case-integrated turbomachine wheel containment

Also Published As

Publication number Publication date
DE60032079D1 (de) 2007-01-11
EP1083300A2 (de) 2001-03-14
JP2001123995A (ja) 2001-05-08
US6206631B1 (en) 2001-03-27
DE60032079T2 (de) 2007-06-21
EP1083300A3 (de) 2004-01-21

Similar Documents

Publication Publication Date Title
EP1083300B1 (de) Bläsergehäuse mit doppelwandiger Berstschutzstruktur
US6382905B1 (en) Fan casing liner support
US6227794B1 (en) Fan case with flexible conical ring
EP2336500B1 (de) Verfahren zur herstellung einer einlassvorrichtung eines flugzeugtriebwerkes
JP4780831B2 (ja) 輪郭ハードウォールコンテインメント
US8202041B2 (en) Fan case for turbofan engine
EP1149229B1 (de) Schlagfestes ventilatorgehäuse mit strukturierter stosskante
US6913436B2 (en) Gas turbine engine blade containment assembly
EP2388441B1 (de) Gebläsegehäuse mit Abriebelementen
US6769864B2 (en) Gas turbine engine blade containment assembly
EP2932052B1 (de) Bläsergehäuse mit thermisch konformer auskleidung
US20140064938A1 (en) Rub tolerant fan case
RU2406877C2 (ru) Упрочнение корпуса вентилятора в газотурбинном реактивном двигателе
EP1403486B1 (de) Akustisch-struktureller Niederdruckverdichter-Strömungsteiler
CN109690028B (zh) 涡轮机定子行进波抑制件
US20200157953A1 (en) Composite fan blade with abrasive tip
US20210054762A1 (en) Gas turbine engine fan bumper
GB2375798A (en) A gas turbine engine fan blade containment assembly
CN115217629A (zh) 用于能量吸收的轻型风扇壳体构造

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7F 01D 25/26 B

Ipc: 7F 02C 7/04 B

Ipc: 7F 01D 21/04 A

Ipc: 7F 01D 25/24 B

17P Request for examination filed

Effective date: 20040721

AKX Designation fees paid

Designated state(s): DE FR GB IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60032079

Country of ref document: DE

Date of ref document: 20070111

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070830

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20100825

Year of fee payment: 11

Ref country code: FR

Payment date: 20100831

Year of fee payment: 11

Ref country code: DE

Payment date: 20100827

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20100825

Year of fee payment: 11

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20110824

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110824

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60032079

Country of ref document: DE

Effective date: 20120301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110831

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110824

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120301